Half to edmond g



No Model.) I

H. P. STEARNS.

ROUTING TOOL.

No. 356,429. Patented Jan. '18, 1887.

in vezuoz:

Nrr En S'rArns HENRY F. STEARNS, OF SARATOGA SPRINGS, YORK, ASSIGNOR OF ONE- HALF TO EDMOND G. RAWVSON, OF SAME PLACE.

ROUTING-TOOL.

SPECIFICATION forming part of Letters Patent No. 356,429, dated January 18, 1887.

Application filed J une :12, 1885.

To all whom it may concern:

Be it known that I, HENRY F. STEARNS, a citizen of the United States, residing at Saratoga Springs, in the county of Saratoga and State of New York, have invented certain new and useful Improvements in Routing-Tools for \Vorkers of Wood, of which the following is a specification.

My invention relates to improvements in l0 routing-tools in which the stock is provided with a mouth having on one of its sides a way for holding the cutting-tool and a wedgingpiece and an adjustable gage working in the arms of the tool, all of which I will hereinafter particularly describe and set forth; and the objects of my invention are to provide in a routing-tool adjustable and interchangeable cutting-tools, which will be securely held from shifting in the mouth of the tool and have the gaging devices adapted to be variously adjusted and set at either right or left hand side of the cutting-tool and at any desired distance therefrom as the work to be done may require. I attain these objects by the mechanism illustrated in the accompanying drawings, in which Figure 1 is a view of the tool from above. Fig. 2 is a longitudinal sectional elevation.

' Fig. 3 is a cross-section taken at line 1 in Fig. 1. Fig. 4 is a view of the mouth of the stock with the cutting-tool and wedge removed, and showing the tool-guiding way. Fig. 5 is a plan view of a cutting-tool and an end view of the same, showing the coacting way made therein.

The same letters of reference refer to like parts throughout the several views.

The stock A, arms A, and handles A A of this tool may be made in one piece of malleable iron, or be made of wood and iron com- 4 bined, if preferred. The stock A is made with a graduallycontracting mouth, B. Across the upper portion of this month, and arranged slightly to one side of the center of its width and running longitudinally in direction ofarms 4 5 A, is bar b, preferably made solid with the end walls of said mouth, or securely fixed therewith. Made with the rear side wall, a, of this month is the way a, which is shown in Figs. 3 and 4 to project a short distance past the plane 0 of said rear wall.

0 is the cutting-tool, made with any form Serial No. 169,356. (No model.)

of cutting bit or edge usually employed for grooving, channeling, beading, or forming moldings, or for incising.- Made central in the width of this cutting-tool and in itsrear side from its upper end, or near the cutting bit or edge, is the Way 0, corresponding in size and form with way 0, made with the rear wall, a, of mouth B, so that the former will receive the latter and permit the shank of the tool to have a full bearing on the surface of wall a of the mouth of the tool. These ways may be made to be reversed in their respective forms by making that in wall a of mouth B in the form of a groove instead of a projection, as shown, and that in tool 0 in the form of a projection instead of a groove, as shown. These ways 0 c in the respective pieces co-operate together to hold the cutting tool or blade 0 from shifting or being moved out from its normal set position in the mouth of the stock, and allow a variety of tools or blades, 0, of differing widths to be employed within mouth B without the least liability of shifting when the tool is being operated.

D is the wedge, having a shallow groove, d, running across its front side, as, shown in Fig. 3, for engagement with holding-bar b. The lower end of this wedge is made with an incline, as shown in the same figure, so as to permit an opening between the tool or blade below and the front wall of mouth B, for passage of the shavings from the cutting bit or edge of the blade 0. In the upper end portion of this wedge D is made ascrew-threaded hole, into which works the set-screw f, by which, through wedge D, the cutting tool or blade 0 is securely held in its adjusted position and length of projection below the sole or face m'of the stock, which face is curved in its surface. Made in arms A A are slots E E, extended to any preferred distance from stock A toward handles A.

F is an adjustable gage-lip provided with a projection, g, which nicely fits in slots E, for holding with the same to prevent the gage-lip from shifting sidewise. This projection is made with tailpiece F of the gage-lip, and has proj ecting upward fromitthescrew-threaded stem h. Nicely fitting this stem h is the screw-threaded finger-nut H, for securing this gage-lip at any point distant from the cutting tool or blade C. This gage-lip and its holding device are adapted to be used in the slot E of either of the arms A, as may be required for right or left hand work.

By my above-described improvements I obviate the use of several different bodies ofroutingtools as heretofore required by carriagemakers, cabinet-makers, and other workers of wood for different operations or kinds of work, and with a variety of cutting blades or tools, G, provided each with a suitable form of cutting edge or hit, a workman can form in the wood on straight or curved lines, and on the right or left hand edges of the pieces, grooves, channels, beads, moldings, fiutings, or other raised or sunken surfaces, as may be required.

The mouth of the router, being arranged to be vertically over the cutting-bit of tool 0, will deliver the shavings upward from the same in a free manner instead of in a forward direction, as is usual in routers heretofore made, and the shavings will be freely delivered from the cutting-bit and without the least liability of choking the tool, as heretofore. The coacting ways 0 0, made with the rear side wall of the mouth of the stock and the rear side of the shank of the cutting-tool O, operate to hold that tool firmly from shifting in any direction, and the bar b Operating with the groove 01 of wedge D, holds thelattcr from moving in either direction end wise, while the wedge D, with the set-screw f, operates to hold the tool or blade 0 secure to its place, with its cuttingedge projecting below the sole of the stock to the point adjusted to without the least liability of its be-' ing raised, and also allows this cutting-blade to be readily set to cut deeper from time to time, as may be required in the progress of the work. a

The spokeshave-blade can readily be applied and be firmly held and shifted in either direction in relation to the mouth of the stock A. The stock, with its slotted arms and handles, operating to serve as the body of a spokeshave, being well adapted to receivetheabovedescribed shavingblade S, obviates the use and expense of a special and individual stock, as heretofore required.

The stock A and its mouth 13 may be made of any suitable length, so as to receive two or more cutting-tools, O, for grooving or incising or beading two or more surfaces at a time, as may be preferred. The curved surface of face at of the stock running from one side to the other enables the operator, by slightly turning the stock, to cut with a greater or less depth into the wood, and thereby obviates the necessity of setting the cutting-blade G (for making different depths of cuts) several times before finishing the work being done.

If preferred, a small bracket, z, made with the rear side of the stock, and provided with a set-screw, 00, working in its head end, and its lower end working in a small sleeve at tached to the upper end of the tool 0 and held by a key, may be employed for raising or lowering the tool, as is the practice with irons in planes.

Having described my invention, what I claim, and desire to secure by Letters Patent,

In a routingtool, the combination, with a stock provided with similarly-slotted arms, which are extended in opposite directions from the tool mouth, of an adjustablegage-lip, which is provided with a screw'threaded stem and nut and constructed to be used interchangeably in said slotted arms, a cutting-blade which is provided on its rear side with the way a, which engages with way a, made with the rear side wall of tool-mouth B, and the mechanism described for adjusting and securing said outtingblade in said tool-mouth, substantially as and for the operations and purposes set forth.

HENRY F. STEARNS. -Witnesses:

A. N. SHEPHERD, XV. A. PIEnsEN. 

